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Comparative insecticidal activity of nano and coarse silica on the chinese beetle callosobruchus chinensis (L) (Coleoptera : Bruchidae)
Other Title(s)
النشاط الإبادي المقارن للسيلكا النانوية و السيلكا الخشنة علي الخنفساء الصينية
Joint Authors
Tayib, al-Sayyid Hasan Muhammad
Kurdi, Ahmad Muhammad Ali
Ghuthayth, Haydar Husayn
Misbah, Hasan Ali Abd al-Hamid
Source
Alexandria Science Exchange Journal
Issue
Vol. 38, Issue 4 (31 Dec. 2017), pp.654-660, 7 p.
Publisher
Publication Date
2017-12-31
Country of Publication
Egypt
No. of Pages
7
Main Subjects
Abstract EN
The insecticidal activity of two types of silica (normal or coarse [CS] [150mm] and nano-silica particles [NSPs] [35 nm]) was determined using Callosobruchus chinensis (L) as the test insect.
When the unsexed adults were exposed to broad bean seeds admixed with different concentrations of both tested silica (0.5, 1.0 and 2.0 g/100 g seeds) for different periods (48, 96, 144 and 192 hrs), it was found that NPS had more insecticidal activity against the bruchid beetle C.
chinensis.
Moreover, it was found that as the exposure time and concentration increased, the mortality of the adults increased.
For each concentration of the tested silica with different exposure time, the LT50 of the bioassay tests showed that the calculated LT50 values of NSPs (83.44, 72.23 and 67.52 hrs) were less than those of CS (140.00, 131.44 and 120.15 hrs at the three tested concentrations of 0.5, 1.0 and 2.0 g/100g seeds, respectively).
Therefore NSPs are more biologically active than CS against C.
Chinensis.
The adults survived treatment were left in the same bioassay jars to reproduce the first generation (F1) to determine the delayed effect of such tested concentration of both silica types.
The results showed that there were no emerged adult insects at the concentrations of 1.0 and 2.0 g NSPs /100 g broad bean seeds.
The numbers of the emerged insects after treatment with coarse silica was decreased as the concentration increased giving a range of emerged adults of 2.3-10.0 as compared with untreated check (control), which produced 24.7 adults.
The pattern of picking-up silica particles of both tested silica types was also illustrated showing more pick-up of particles in case of using NSPs concentrations.
Nano-silica particles (NSPs) were found to be effective against the bruchid beetle C.
chinensis and could be effectively used in the Integrated Pest Management (IPM) program for C.
chinesis and for other stored grain insect-pests.
American Psychological Association (APA)
Misbah, Hasan Ali Abd al-Hamid& Tayib, al-Sayyid Hasan Muhammad& Kurdi, Ahmad Muhammad Ali& Ghuthayth, Haydar Husayn. 2017. Comparative insecticidal activity of nano and coarse silica on the chinese beetle callosobruchus chinensis (L) (Coleoptera : Bruchidae). Alexandria Science Exchange Journal،Vol. 38, no. 4, pp.654-660.
https://search.emarefa.net/detail/BIM-952535
Modern Language Association (MLA)
Misbah, Hasan Ali Abd al-Hamid…[et al.]. Comparative insecticidal activity of nano and coarse silica on the chinese beetle callosobruchus chinensis (L) (Coleoptera : Bruchidae). Alexandria Science Exchange Journal Vol. 38, no. 4 (Oct. / Dec. 2017), pp.654-660.
https://search.emarefa.net/detail/BIM-952535
American Medical Association (AMA)
Misbah, Hasan Ali Abd al-Hamid& Tayib, al-Sayyid Hasan Muhammad& Kurdi, Ahmad Muhammad Ali& Ghuthayth, Haydar Husayn. Comparative insecticidal activity of nano and coarse silica on the chinese beetle callosobruchus chinensis (L) (Coleoptera : Bruchidae). Alexandria Science Exchange Journal. 2017. Vol. 38, no. 4, pp.654-660.
https://search.emarefa.net/detail/BIM-952535
Data Type
Journal Articles
Language
English
Notes
Record ID
BIM-952535